chr9-127502808-G-A

Position:

• chr9-127502808-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1 PM2 PM5 PP5

The NM_001005373.4(LRSAM1):​c.2081G>A​(p.Cys694Tyr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C694R) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 31)
• Consequence: LRSAM1 NM_001005373.4 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.07

Genes affected

LRSAM1 (HGNC:25135): (leucine rich repeat and sterile alpha motif containing 1) This gene encodes a ring finger protein involved in a variety of functions, including regulation of signaling pathways and cell adhesion, mediation of self-ubiquitylation, and involvement in cargo sorting during receptor endocytosis. Mutations in this gene have been associated with Charcot-Marie-Tooth disease. Multiple transcript variants encoding different isoforms have been identified for this gene. [provided by RefSeq, Jan 2012]

LRSAM1 (HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

• PM1: In a zinc_finger_region RING-type (size 35) in uniprot entity LRSM1_HUMAN there are 7 pathogenic changes around while only 0 benign (100%) in NM_001005373.4
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr9-127502807-T-C is described in Lovd as [Pathogenic].
• PP5: Variant 9-127502808-G-A is Pathogenic according to our data. Variant chr9-127502808-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 268046.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr9-127502808-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LRSAM1	NM_001005373.4	c.2081G>A	p.Cys694Tyr	missense_variant	26/26	ENST00000300417.11	NP_001005373.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LRSAM1	ENST00000300417.11	c.2081G>A	p.Cys694Tyr	missense_variant	26/26	1	NM_001005373.4	ENSP00000300417.6

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 31

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Charcot-Marie-Tooth disease axonal type 2P Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Nov 08, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.97
BayesDel_addAF	Pathogenic	0.29	D
BayesDel_noAF	Pathogenic	0.17
CADD	Pathogenic	31
DANN	Uncertain	1.0
DEOGEN2	Benign	0.39	T;.;T;T
Eigen	Pathogenic	0.91
Eigen_PC	Pathogenic	0.84
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.90	D;D;.;.
M_CAP	Uncertain	0.21	D
MetaRNN	Uncertain	0.72	D;D;D;D
MetaSVM	Uncertain	0.71	D
MutationAssessor	Pathogenic	3.3	M;.;M;M
PrimateAI	Uncertain	0.77	T
PROVEAN	Pathogenic	-7.8	D;D;D;D
REVEL	Pathogenic	0.85
Sift	Pathogenic	0.0	D;D;D;D
Sift4G	Pathogenic	0.0	D;D;D;D
Polyphen		1.0	D;D;D;D
Vest4		0.55
MutPred		0.73		Loss of helix (P = 0.0068);.;Loss of helix (P = 0.0068);Loss of helix (P = 0.0068);
MVP		0.97
MPC		0.93
ClinPred		1.0	D
GERP RS		5.3
Varity_R		0.94
gMVP		0.88

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs886041051; hg19: chr9-130265087;